Q.2 The heat absorption and rejection temperatures of a Carnot refrigeration cycle are -8°C and 55°C respectively. The heat rejection rate is 30 kW. There is a temperature difference of 6°C between the refrigerant and two heat reservoirs. The internal processes of the cycle are reversible. (a) Calculate the work input, and the COP of the refrigeration cycle. (b) If the cycle is operated as a heat pump, calculate heat absorption rate and the COP. [Answers: (a) 6.74 kW. 3.45. (b) 23.26 kW. 4.451

Q.2 The heat absorption and rejection temperatures of a Carnot refrigeration cycle are -8°C and 55°C respectively. The heat rejection rate is 30 kW. There is a temperature difference of 6°C between the refrigerant and two heat reservoirs. The internal processes of the cycle are reversible. (a) Calculate the work input, and the COP of the refrigeration cycle. (b) If the cycle is operated as a heat pump, calculate heat absorption rate and the COP. [Answers: (a) 6.74 kW. 3.45. (b) 23.26 kW. 4.451

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 13RQ: If 14 gpm of water is flowing through an open-loop heat pump with a temperature difference of 7F,...

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